.left-component-item {
  position: relative;
}
.left-component-item::before,
.left-component-item::after {
  position: absolute;
}
.left-component-item::before {
  display: inline-block;
  content: attr(data-content);
  background-color: aquamarine;
  font-size: 20px;
  padding: 2px 10px;
  top: 0;
  left: 0;
}
.left-component-item::after {
  content: '';
  top: 0;
  bottom: 0;
  left: 0;
  right: 0;
}
.no-editor::after {
  display: inline-block;
  position: absolute;
  content: '';
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
}
.is-choose {
  border: 2px dashed red;
}
